config: add synonym config from PROD

Signed-off-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
workflows: arXiv/DOI matching task improvement

* Takes the configuration of WORKFLOWS_MATCH_REMOTE_SERVER_URL from
  the global scope.

* Forces lowercase string matching for arXiv prefix stripping.

* Adds some error handling if the remote requests suffers
  connection issues.

Signed-off-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
workflows: template naming fix

Sign-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>